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Hydrostatic force on a plane surface

  1. Apr 25, 2012 #1
    i have this example of a hydrostatic force on a plane surface.

    what i dont understand is how the width of the integral strip is derived

    it says w(s)=b(s-s1)/L i dont understand how this comes about?

    would be really greatful if anyone could direct me i cant find anything on triangular lamina double integration :S


    Attached Files:

  2. jcsd
  3. Apr 26, 2012 #2
    just draw a perpendicular from the vertex on the base and then use the property of similar triangles.
  4. Apr 27, 2012 #3
    great thanks for that
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